解决编译告警

cheliequan

2023-01-29 dccc1ca1304dc1fcb86c8e24edd491509269b3e7

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new_obj.to_string()=[1.20,3.40,123456.78,5.00,23000000000.00]
new_obj.to_string()=[1.2,3.4,123456.78,5.0,2.3e10]